KR20200058488A - 저온용 니켈 함유 강 - Google Patents
저온용 니켈 함유 강 Download PDFInfo
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- KR20200058488A KR20200058488A KR1020207011773A KR20207011773A KR20200058488A KR 20200058488 A KR20200058488 A KR 20200058488A KR 1020207011773 A KR1020207011773 A KR 1020207011773A KR 20207011773 A KR20207011773 A KR 20207011773A KR 20200058488 A KR20200058488 A KR 20200058488A
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- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
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- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Materials Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (5)
- 화학 조성이, 질량%로,
C: 0.040 내지 0.080%,
Si: 0.03 내지 0.30%,
Mn: 0.20 내지 0.80%,
Ni: 10.5 내지 12.4%,
Mo: 0.10 내지 0.50%,
Al: 0.010 내지 0.060%,
N: 0.0015 내지 0.0060%,
O: 0.0007 내지 0.0030%,
Cu: 0 내지 0.50%,
Cr: 0 내지 0.50%,
Nb: 0 내지 0.020%,
V: 0 내지 0.080%,
Ti: 0 내지 0.020%,
B: 0 내지 0.0020%,
Ca: 0 내지 0.0040%,
REM: 0 내지 0.0050%,
P: 0.0070% 이하,
S: 0.0040% 이하, 및
잔부: Fe 및 불순물이고,
판 두께 중심부의 금속 조직이, 2.0 내지 20.0체적%의 오스테나이트 상을 함유하고,
상기 판 두께 중심부의 압연 방향 및 판 두께 방향에 평행한 면에 있어서 측정되는 구 오스테나이트 입자의 평균 입경이 3.0 내지 12.0㎛이고,
상기 판 두께 중심부의 상기 압연 방향 및 상기 판 두께 방향에 평행한 상기 면에 있어서 측정되는 상기 구 오스테나이트 입자의 평균 애스펙트비가 2.6 내지 10.0이고,
판 두께가, 4.5 내지 20㎜이고,
실온에서의 항복 응력이, 590 내지 710㎫이고,
상기 실온에서의 인장 강도가, 690 내지 810㎫이고,
상기 판 두께가 16㎜ 초과인 경우, Ni: 11.5% 이상이고,
상기 판 두께가 16㎜ 이하이면서 Ni: 11.5% 미만인 경우, C: 0.070% 이하, Si: 0.19% 이하, Mn: 0.40% 이하, Al: 0.050% 이하, N: 0.0050% 이하, Cr: 0.35% 이하, Nb: 0.015% 이하, V: 0.060% 이하, Ti: 0.015% 이하, P: 0.0050% 이하, 및 S: 0.0030% 이하이고, 또한 상기 구 오스테나이트 입자의 상기 평균 입경이 6.0㎛ 이하인 것을 특징으로 하는 저온용 니켈 함유 강. - 제1항에 있어서,
Ni: 11.5% 이상이고,
Mn: 0.50% 이하인
것을 특징으로 하는 저온용 니켈 함유 강. - 제1항 또는 제2항에 있어서,
Ni: 11.5% 이상이고,
상기 구 오스테나이트 입자의 상기 평균 입경이 9.0㎛ 이하인
것을 특징으로 하는 저온용 니켈 함유 강. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 판 두께 중심부의 상기 압연 방향 및 상기 판 두께 방향에 평행한 상기 면에 있어서 측정되는 평균 유효 결정 입경이 2.0 내지 7.0㎛인
것을 특징으로 하는 저온용 니켈 함유 강. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 판 두께 중심부의 상기 압연 방향 및 상기 판 두께 방향에 평행한 상기 면에 있어서 측정되는 평균 유효 결정 입경이 2.0 내지 4.0㎛인
것을 특징으로 하는 저온용 니켈 함유 강.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/038632 WO2019082326A1 (ja) | 2017-10-26 | 2017-10-26 | 低温用ニッケル含有鋼 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20200058488A true KR20200058488A (ko) | 2020-05-27 |
| KR102307707B1 KR102307707B1 (ko) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020207011773A Active KR102307707B1 (ko) | 2017-10-26 | 2017-10-26 | 저온용 니켈 함유 강 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US11371121B2 (ko) |
| EP (1) | EP3702484B1 (ko) |
| JP (1) | JP6852807B2 (ko) |
| KR (1) | KR102307707B1 (ko) |
| CN (1) | CN111263828B (ko) |
| WO (1) | WO2019082326A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6852804B2 (ja) | 2017-10-26 | 2021-03-31 | 日本製鉄株式会社 | 低温用ニッケル含有鋼 |
| US11384416B2 (en) | 2017-10-26 | 2022-07-12 | Nippon Steel Corporation | Nickel-containing steel for low temperature |
| JP6852805B2 (ja) | 2017-10-26 | 2021-03-31 | 日本製鉄株式会社 | 低温用ニッケル含有鋼 |
| EP4450660A4 (en) | 2021-12-17 | 2025-01-29 | Nippon Steel Corporation | NICKEL-CONTAINING STEEL WELDING JOINT FOR LOW TEMPERATURE USE |
| CN121866353A (zh) * | 2023-11-16 | 2026-04-14 | 杰富意钢铁株式会社 | 钢板及其制造方法 |
| WO2025262949A1 (ja) * | 2024-06-21 | 2025-12-26 | 日本製鉄株式会社 | 溶接継手 |
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| JP6693185B2 (ja) * | 2016-03-11 | 2020-05-13 | 日本製鉄株式会社 | 低温用ニッケル鋼板の製造方法 |
| JP6620662B2 (ja) * | 2016-04-25 | 2019-12-18 | 日本製鉄株式会社 | 液体水素用Ni鋼 |
| JP6852804B2 (ja) | 2017-10-26 | 2021-03-31 | 日本製鉄株式会社 | 低温用ニッケル含有鋼 |
| JP6852805B2 (ja) | 2017-10-26 | 2021-03-31 | 日本製鉄株式会社 | 低温用ニッケル含有鋼 |
| US11384416B2 (en) | 2017-10-26 | 2022-07-12 | Nippon Steel Corporation | Nickel-containing steel for low temperature |
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2017
- 2017-10-26 EP EP17929543.1A patent/EP3702484B1/en active Active
- 2017-10-26 US US16/757,985 patent/US11371121B2/en active Active
- 2017-10-26 CN CN201780096193.7A patent/CN111263828B/zh active Active
- 2017-10-26 JP JP2019549764A patent/JP6852807B2/ja active Active
- 2017-10-26 WO PCT/JP2017/038632 patent/WO2019082326A1/ja not_active Ceased
- 2017-10-26 KR KR1020207011773A patent/KR102307707B1/ko active Active
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2022
- 2022-05-23 US US17/751,147 patent/US11578391B2/en active Active
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Also Published As
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|---|---|
| US20220282359A1 (en) | 2022-09-08 |
| EP3702484A4 (en) | 2021-03-03 |
| US11578391B2 (en) | 2023-02-14 |
| WO2019082326A1 (ja) | 2019-05-02 |
| US11371121B2 (en) | 2022-06-28 |
| CN111263828B (zh) | 2021-08-17 |
| JPWO2019082326A1 (ja) | 2020-11-05 |
| EP3702484A1 (en) | 2020-09-02 |
| CN111263828A (zh) | 2020-06-09 |
| EP3702484B1 (en) | 2022-01-26 |
| US20200291506A1 (en) | 2020-09-17 |
| KR102307707B1 (ko) | 2021-10-01 |
| JP6852807B2 (ja) | 2021-03-31 |
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